PLEASE HELP!! Brainliest to first answer

An archer shoots an arrow into the sky where the motion of the arrow can be modeled by the equation() = −5^2 + 20 + 4. Where t is time in seconds and f(t) is height in feet. Find how long it will take the arrow to hit the ground using an algebraic method. Round to the nearest tenth if necessary. Show all of your reasoning used with this algebraic method.

Answers

Answer 1

Answer:

t=−1

Step-by-step explanation:

Related Questions

Which graph could represent this scenario?

Veron adds some flour to a partially filled bin by pouring it
in at a constant rate until the flour reaches the brim. He
stops pouring flour when the bin is full.
Which graph could represent this scenario?

Answers

Answer:

Linear! :)

Step-by-step explanation:

Answer:

wheres the gragh?

Step-by-step explanation:

JUST HELP PLS FAST PLS PLS PLS

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Answer:

A little

Larger

Step-by-step explanation:

Help find missing angles

Answers

Answer: s=45 and r=45

24-10b=9 what is the missing variable equal to

Answers

Answer:

b = 1.5

Step-by-step explanation:

Lets first set up the equation:

24 - 10b = 9

Okay now lets add 10b on both sides:

24 = 9 + 10b

Now let's subtract 9 from both sides so we can get the variable b by its self:

15 = 10b

Okay now we can divide each side by 10:

1.5 = b

Answer:

24-10(1.5)=9

b = 1.5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

b = 3 /2

Decimal Form:

b = 1.5

10(1.5) = 15

24 - 15 = 9

-45 divided by 9 , show your work

Answers

Answer:

9 can go into -45 5 times becuase 5 times 9 is 45 but because it is a negative number the answer will be -5 because a negative and a positive =a negative does this help? :)

Step-by-step explanation:

Find the common difference of the arithmetic sequence -8, -5, -2, ...

Answers

You’re increasing by 3

Answer:

The answer is n + 3

N= the last number

Help ASAPPP PLEASE AND THANK YOU

Answers

Answer:

Step-by-step explanation:

the right equation is the one on D

The sun heats surface water through __________.

Answers

Answer: Evaporation

Step-by-step explanation: The sun heats surface water through evaporation.

| 4r + 20 | = 28
help ASAP

Answers

Answer:

r = 2

Hope this helps and have a great day :)

And please mark me brainliest if you can :)

So the absolute values basically just make everything positive so get rid of them now. Then subtract 20 from both sides leaving 4r=8. Then divide by 4 and you get r=2

Simplify by combining like terms 7xy - xy + 3xy

Answers

Answer:

9xy

Step-by-step explanation:

12= 2x + 2
Solve for X

Answers

Answer:

x=5

Step-by-step explanation:

hope you have a great day!

Answer:

x = 5

Step-by-step explanation:

minus 2 from both sides. so you get

10 = 2x.

divide by 2 on both sides to get

x = 5

A rectangular playground is 40 feet wide. Find the area of this playground, if the fence around it including the gates, is 200 feet long.

Answers

Answer:

The area is 240² ft.

Please help due in 30 min

Answers

Answer:

1:4 B

Step-by-step explanation:

Answer:

1:4

Step-by-step explanation:

Consider 2^1, 2^2, 2^3, 2^4,2^5,... look for a pattern, and hence find the last digit of 2^111

Answers

Answer:

2.5961484293×10^13

Step-by-step explanation:

2^1 = 2

2^2 = 4

2^3 = 8

2^4 = 16

2^5 = 32

2^111 = 2.5961484293×10^13

Hope this helps! <3

this is a true or false thing for geometry

Answers

1) False
2) If two angles are 45 degrees then they are complementary and congruent.

Explanation: Complementary angles add up to 90 degrees and congruent angles are angles that are equal. Two 45 degree angles are equal to each other and add up to 90 degrees. The first statement is false because there are many combinations of angles that add up to 90 degrees that are not the same. (30 degrees and 60 degrees)

Carla can fill 5 glasses with soda every 20 seconds.
Complete the table using equivalent ratios
Glasses Seconds
5 20
12 ?
? 44

Lol I'm dumb so help

Answers

Answer:

12 glasses = 48 seconds

11 glasses = 44 seconds

Which equation describes the line parallel to y = –7x + 15 that contains P(9, –6)?

Answers

Parallel means same slope. So you have to use point slope form. (x1,y1) is (9,-6) and the slope is -7

So it would be

y-(-6)=-7(x-9)

y+6=-7x+63

Solving for y gives you

y=-7x+57

Hope this helps!!!

Hi if you can answer this i'll mark u brainllest
Im really bad at mathhh :(

Answers

Answer: I believe this is the anwser key

Step-by-step explanation:

Answer:

Step-by-step explanation:

Twinkle toes tony kick the football and it landed 100 feet from where he kicked it also reach a maximum height of 125 feet write an equation that models the path of the ball while it was in the air

Answers

Answer:

The equation that models the path of the ball is y = 5·x - 0.05·x²

Step-by-step explanation:

The given information are;

The distance the football landed from where it was kicked = 100 feet

The maximum height the football reached = 125 feet

The equation that models the path of the ball is that of the equation of parabola in vertex form, given as follows;

y = a·(x - h)² + k

Where;

(h, k) = The coordinate of the vertex (which is the coordinates of the highest point reached by the ball)

Therefore, taking the x-coordinate of the highest point reached by the ball as midpoint of the horizontal distance moved by the ball, we have;

The x-coordinate of the midpoint of the horizontal distance moved by the ball = (50, 0)

We have;

The coordinate of the highest point reached by the ball = (50, 125)

Therefore;

(h, k) = (50, 125)

Substituting the above values in the equation of the parabola gives;

y = a·(x - 50)² + 125

At x = 100, y = 0, which gives;

0 = a·(100 - 50)² + 125 = a·2500 + 125

0 = a·2500 + 125

a = -125/2500 = -0.05

Therefore, we have;

y = a·(x - h)² + k = y = -0.05 × (x - 50)² + 125 = -0.05·x² + 5·x - 125 + 125

y = -0.05·x² + 5·x - 125 + 125 = -0.05·x² + 5·x

y = -0.05·x² + 5·x

The equation that models the path of the ball is y = -0.05·x² + 5·x.

help me quickly. ratioss

Answers

Answer:

Step-by-step explanation:

SORRY THAT ITS UPSIDE DOWN BUT CAN YALL DO THIS FOR ME ITS DUE IN A HOUR

Answers

Answer: y=-6

Step-by-step explanation: I tried a few combinations and the distance was 17 if y=-6

how to round 10.71428571 by the nearest ten.

Answers

Answer:

Well if it is rounding to the nearest 10 it is 10

but if you meant round to the nearest 10th then it is 10.7

Step-by-step explanation:

For 10 you look at the ones place if it is 0-4 round down if it is 5-9 round up so for this number round down which is 10

FOr 10.7 look at the hundredths place if it is 0-4 round down if it is 5-9 round up so for this number round down which is 10.7

Hope this helps!

Help!!!! Please!!!!!

Answers

Answer:

j,fj,fj,fj,fj,fj,fhj,fj,fj,fj,

Step-by-step explanation:

At noon, a tank contained 5 in. of water. After several hours, it contained 4 in. of water. What is the percent decrease of water in the tank?

Answers

The water decreased by 50% because the water started at 8 cm and went down to 4 cm. Half of 8 is 4, or if you multiply 8 by .5, or 50%, you get 4.
I’m not for sure if this is correct, if it’s wrong I am very sorry!! I hope you have a great day :).

Answer:

20%

Step-by-step explanation:

4 is 80% of 5, so all we need to do is find out what percent is left after 80%, 20%, and then that would be how much it decreased

please solve this, u get 25 points

Answers

Answer:

0-22

2-36

4-50

6-64

8-78

hope it helps!

Help me it’s due in 20 minutes

Answers

9514 1404 393

Answer:

a) a, b

b) d

Step-by-step explanation:

A line with positive slope goes up to the right. The right end is higher than the left end. Lines a and b have positive slope.

A line with negative slope goes down to the right. The right end is lower than the left end. Line d has negative slope.

_____

Vertical line y is said to have "undefined" slope. Horizontal lines c and x have zero slope (neither positive nor negative).

A canoe rental service charges a $20 transportation fee and $30 dollars an hour to rent a canoe. Write an equation representing the cost, y, of renting a canoe for x hours. What is the cost of renting the canoe for 6 hours?

Answers

Answer:

use slope intercept form to write the equation y=mx+b m (slope of the line) will be the hourly fee, and b (y-intercept) will be the one-time transportation fee.

y=30x+20

to find the cost of renting a canoe for 6 hours, plug 6 into the equation replacing x

y=(30×6)+20

y=180+20=$200

Sorry, I can't graph the line, but I would number the x-axis of the coordinate plane (graph) by 1s or 2s (for the hours), and the y-axis by 20s (for the cost

Step-by-step explanation:

Upside down numbers
What is the smallest number that increases by 12 when it is flipped and turned upside down?

Answers

Answer:

Step-by-step explanation:

hope it helps

Which one?
A. B. C or D?

Answers

Answer:

Hope this helped!

Happy Halloween!

Solve: 4(6x−10)=8x+40
5

25/8

5/2

0

Answers

Answer:

Good Luck!!!

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